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Maths > Mock > Flashcards

Mock Flashcards

1
Q

Corresponding angles (f angle)…

A

Are equal

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2
Q

Alternate angles(z angle)…

A

Are equal

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3
Q

Co-interior angles(c angle)…

A

Add up to 180

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4
Q

What is the general equation of a straight line?

A

y=mx + c

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5
Q

What is the gradient equation?

A

Rise/run

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6
Q

How do you find the equation of a line when you’re given the gradient and the point that it goes through?

Gradient = 2
Point it goes through = (2,9)

A

y=mx + c
9=2(2)+c
9=4+?
C=5p

Answer: y=2x + 5

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7
Q

How do you calculate the gradient from 2 coordinates?

A

y-y/x-x

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8
Q

What are the angles in perpendicular lines?

A

The negative reciprocal of one another

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9
Q

What is the negative reciprocal of 1?

A

-1/2

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10
Q

How do you work out the midpoint of a line segment?

A

(x+x/2,y+y/2)

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11
Q

How do you work out the interior angle of a shape?

A

(n-2) x 180

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12
Q

How do you work out exterior angles?

A

360/no of sides

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13
Q

What do you need when you’re adding fractions?

A

A common denominator

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14
Q

What do you need when you’re subtracting fractions?

A

A common denominator

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15
Q

How do you divide fractions?

A

Skip flip multiply

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16
Q

How do you multiply fractions?

A

Multiply the numerators together and multiply the denominators together

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17
Q

What are the 2 steps of simplifying algebraic fractions?

A
  1. Factorise

2. Cancel

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18
Q

What are the 4 types of transformations?

A

Rotation
Reflection
Translation
Enlargementt

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19
Q

What is the object in transformation?

A

The original shape

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20
Q

What is the image in transformation?

A

The shape that is produced

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21
Q

What is translation?

A

Sliding a shape

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22
Q

What is needed in translation?

A

A vector

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23
Q

In a vector, what does the top digit tell you?

A

How far the shape moves to the left/right

24
Q

In a vector, what does the bottom digit tell you?

A

How far the shape moves up/down

25
Q

What are the 3 requirements for rotation?

A

Centre of rotation
Clockwise/anti-clockwise
Angle

26
Q

What 2 things do you need for enlargement?

A

Centre of enlargement

Scale factor

27
Q

How do you find the centre of enlargement?

A

Join up the corners of the object and the image

28
Q

What does a negative scale factor mean?

A

Enlarges and rotates

29
Q

What does a scale factor of 1/2 mean?

A

Gets smaller and closer to centre

30
Q

Area of similar shapes?

A

Ratio squared

31
Q

Volume of similar shapes?

A

Ratio cubed

32
Q

What diagram is used to find out the factors of a number?

A

Factor tree diagram

33
Q

In a Venn diagram, how do you find out the HCF?

A

Multiply all the numbers in the middle

34
Q

In a Venn diagram, how do you find the LCM?

A

Multiply everything

35
Q

What is X to the power of 1/2?

A

The square root of X

36
Q

What is anything to the power of 0?

A

1

37
Q

What is X to the power of -2?

A

1/X squared

38
Q

What do you do to estimate?

A

Round everything to 1 sig fig

39
Q

How do you estimate the root of a number?

A

Find the two closest square numbers and estimate the number from there, depending on which square number it’s closer to

40
Q

How do you convert recurring decimals into fractions?

A
  1. Multiply it by a factor of 10 until it lines up
  2. Do 10x-x
  3. 9x = ?
  4. x = ?/x
41
Q

What is the equation for sin θ?

A

Sin θ=opposite/hypotenuse

42
Q

What is the equation for cos θ?

A

Cos θ=opposite/adjacent

43
Q

What is the equation for tan θ?

A

Tan θ=opposite/adjacent

44
Q

How do you work out the missing angle in trigonometry?

A

Sin-1( )

45
Q

What is the area of a parallelogram?

A

Base x perpendicular height

46
Q

How do you work out the area of a trapezium?

A

Half the sum of the parallel sides

Times the distance between them

47
Q

How do you work out the area of a kite?

A

Width X height/2

48
Q

What is the area of a circle?

A

PiR squared

49
Q

What is the Pythagoras equation?

A

A² + B² =C²

50
Q

How do you use Pythagoras to find the length of a line?

A

Make the line into a right angled triangle

51
Q

What is the equation for speed?

A

Distance/time

52
Q

How do you work out the speed on the distance time graph?

A

The gradient

53
Q

What is the gradient on a speed time graph?

A

Acceleration

54
Q

How do you work out the distance travelled on a speed time graph?

A

The area underneath

55
Q

How do you express ratios in the form 1:n?

A

Make the left side 1

Maths (2 decks)

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